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Hi,

Iam working in DM 642 EVM , this is my problem

=95	We are currently working on DM 642 EVM.=20
=95	We are running the project "vga.pjt"(program given by Texas
instruments=
 along with the DDK) in the LOOPBACK mode and we are able to display on the=
 VGA monitor.
=95	For this purpose we interfaced an PULNIX camera (TM-300 NIR).=20
=95	Our problem is, how to save the incoming images in SDRAM. We are aware =
of the presence of capture and display buffers, but we are unable to locate=
 their memory addresses.=20
=95	Is there any literature to help us in this regard or any source code fo=
r the same.=20
regards,

Prashanth

_____________________________________

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Prashanth,

There are two methods of working with capture and display FIFOs,
one is to reference the memory mapped locations of the FIFOs,
the other is to use peripheral registers - they are also memory
mapped, however internally use peripheral bus to access the FIFOs.
Both require non-advancing DMA transfers on the FIFO side.
You may want to look at how it is done in the driver code in the DDK,
for theory, memory addresses, etc, please refere to the device
datasheet and SPRU926 Video Port user's guide.

Rgds,
Andrew

> Subject: DM642 EVM
> Posted by: "prashant" pras_viji@y pras_viji
> Date: Tue Jun 16, 2009 1:16 am ((PDT))
>
> Hi,
>
> I am working in DM 642 EVM , this is my problem
>
> We are currently working on DM 642 EVM.
> We are running the project "vga.pjt"(program given by Texas
instruments 
> along with the DDK) in the LOOPBACK mode and we are able to display on the

> VGA monitor.
> For this purpose we interfaced an PULNIX camera (TM-300 NIR).
> Our problem is, how to save the incoming images in SDRAM. We are aware of 
> the presence of capture and display buffers, but we are unable to locate 
> their memory addresses.
> Is there any literature to help us in this regard or any source code for
the 
> same.
>
> regards,
>
> Prashanth
>

_____________________________________

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